Movement of an object at constant speed around a circle with fixed radius Axis: Straight line around which rotation takes place Rotation: Object turns around an internal axis Revolution: Turns around an external axis Rotational Speed: Number of unit of time Linear Speed: Distance/Time Tangential Speed: Speed along a circular path Centripetal Force: Force that cause an object to follow a circular path Centripetal Acceleration: Always points towards the center of the circular motion
Explanations:
Axis:line or objects that hold something that is moving. Rotations:a object that is moving. Revolution: opposite direction in where is going. Rotational Speed: when you time something that is moving from start to finish. Linear Speed: the distance where the object is at. Tangential Speed:Distinguished from a normal force, which acts at right angles to the tangent and changes the direction of the motion without changing the velocity Centripetal Force: Centripetal force is the name given to the force which makes an object
move in a circular path; a force towards the center. Centripetal Acceleration: For example, it is used to solve problems about rollercoasters or about objects moving on the end of a string.
Any motion in a curved path represents accelerated motion, and requires a force directed toward the center of curvature of the path. This force is called the centripetal force which means "center seeking" force. The force has the magnitude
Basic Formula
We’ll start with the basic force formula, and add in the centripetal acceleration formula we have from Lesson 28. Original Formulas New formula A centrifuge You might have seen movies with an astronaut in training spinning around and around in this big machine to get ready for their flight. The device is called a centrifuge, like the one pictured at right (click on it to go to the Nasa website for the Center for Gravitational Biology Research). Let’s look at the forces on a 100 kg person’s body, and try to relate it back to regular Earth gravity (one “gee” = 9.81m/s2). Keep in mind that just standing on the ground the person in this example would normally weigh (Fg = mg) 9.81e2N. What is the centripetal force acting on this 100kg person if he is spun around in a 8.80m circle at…
Coulomb's law
File:VFPt Solenoid correct2.svg
F = k_mathrm{e} frac{q_1q_2}{r^2}
It is like Newton's law of gravity. But unlike gravity, Electric forces can be attractive or repulsive. Discovered by French Scientist Charles Coulomb in the 18th Century.
Circular Motion
Movement of an object at constant speed around a circle with fixed radiusAxis: Straight line around which rotation takes place
Rotation: Object turns around an internal axis
Revolution: Turns around an external axis
Rotational Speed: Number of unit of time
Linear Speed: Distance/Time
Tangential Speed: Speed along a circular path
Centripetal Force: Force that cause an object to follow a circular path
Centripetal Acceleration: Always points towards the center of the circular motion
- Explanations:
Axis:line or objects that hold something that is moving.Rotations:a object that is moving.
Revolution: opposite direction in where is going.
Rotational Speed: when you time something that is moving from start to finish.
Linear Speed: the distance where the object is at.
Tangential Speed:Distinguished from a normal force, which acts at right angles to the tangent and changes the direction of the motion without changing the velocity
Centripetal Force: Centripetal force is the name given to the force which makes an object
move in a circular path; a force towards the center.
Centripetal Acceleration: For example, it is used to solve problems about rollercoasters or about objects moving on the end of a string.
- Citations:
www.Goolgle.comwww.Definitions.com
www.thesciencedictionary.com
www.teacherdomain.org
Centripetal Force
- For example this demonstrate that what really keeps people pinned to their seats
as aroller coaster hurtles through a loop isn't just the seat belts, it's centripetal force.- Video
http://www.teachersdomain.org/resource/phy03.sci.phys.mfw.roller/Centripetal Force
Any motion in a curved path represents accelerated motion, and requires a force directed toward the center of curvature of the path. This force is called the centripetal force which means "center seeking" force. The force has the magnitudeBasic Formula
We’ll start with the basic force formula, and add in the centripetal acceleration formula we have from Lesson 28.You might have seen movies with an astronaut in training spinning around and around in this big machine to get ready for their flight. The device is called a centrifuge, like the one pictured at right (click on it to go to the Nasa website for the Center for Gravitational Biology Research). Let’s look at the forces on a 100 kg person’s body, and try to relate it back to regular Earth gravity (one “gee” = 9.81m/s2). Keep in mind that just standing on the ground the person in this example would normally weigh (Fg = mg) 9.81e2N. What is the centripetal force acting on this 100kg person if he is spun around in a 8.80m circle at…
Coulomb's law